Apple does not provide an international warranty for iPhones. I'm not 100% that applies to the AirPods, as well, but if it does, then you can only get them serviced in Dubai.
Service options, parts availability and response times may vary according to country. If you require service in a country where Apple does not maintain an Apple Retail Store or Apple Authorized Service Provider (“AASP”), (a list of current service locations is provided at support.apple.com/kb/HT1434), service options may be limited. If a given service option is not available for the Apple Product in such country, Apple or its agents shall notify you about any additional shipping and handling charges which may apply before rendering service.
Ref: Apple One (1) Year Limited Warranty – Accessory - For Apple and Beats Branded Products Only.